Nut-lock.



L. V. BARRETT.

NUT LOOK.

APPLIoATIoN FILED un. 25. 1910.

1,059,260. Patented Apr. 15, 1913. l

iff-y1 UNITEDI STATES PATENT OFFICE.

.LOUIS V. BARRETT, F SUMMIT HILL, PENNSYLVANIA, ASSIGNOR 0F ONE-FOURTHT0 JOHN M. BARRETT, OI' COALDALE, PENNSYLVANIA, AND ON Iii-FOURTH T0ANDREW IBBESLIN, 0F SUMMIT HILL, PENN SYLVANIA. l

' rangements of parts,

NUT-LOCK.

Specification of Letters Patent.

Patented Apr. 15, 1913.

To all whom t may concern Be it known that I, Louis V. BARRETT, av

citizen of the United States, residing at Summit Hill, in the county ofCarbon and State of Pennsylvania, have invented certain new and u-sefulImprovements in Nut- Locks, of which the following is a specification.

My invention relates to improvements in nut locks, the object of theinvention being to provide a nut with lugs or prongs cut from both ofthefaces of the nut, or bur, any of which may be bent inward and projectedinto a longitudinal groove in the bolt on which the nut :is screwed tosecurely lock the bolt and nut together, thus requiring no additionalpart as a locking device for the nut and bolt, providing a positive lockand one that adds but slight expense to the cost of an ordinary bolt andnut.

With these and other objects in view, the

'invention consists in certain novel features of construction andcombinations and aras will be more fully hereinafter described andpointed out in the claims.

In the accompanying drawings: Figure 1, is a view in vertical sectionthrough a rail joint illustrating one application of my improvements.Fig. 2, is an end view of Fig. 1,

`and Fig. 3, is a view illustrating the inner face of the nut showin thebolt in section.

' l, represents the we of a rail, 2 the fish plates, and 3 a bolt passedthrough the rail and fish plates, and having a head 4 at one end bearingagainst one of the fish plates. The opposite end of the bolt is screwthreaded as shown and provided with a pluralit of longitudinal 'V-shapedgrooves 5, which are an equal distance apart, four being shown althoughI do not limit myself to any particular number.

6, represents my improved nut or bur which may, of course, be of anydesired shape but preferably rectangular as shown. In the inner andouterfaces of this nut or bur 6 and extending inward from the four corners ofthe nut, lugs or prongs 7 are cut from the nut. The cut which formsthese lugs or prongs extends to a point a little more than half waybetween the angle of the nut and the screw threaded opening therein, sothat when the lugs or prongs are bent backward against the face `of thenut,

their .ends which are V-shaped -by reason of the angles of the nut willproject into thc grooves 5 of the bolt as shown most clearly in Figs. l,and 2.

In utilizing my improved nut and bolt, as many of these lugs or prongsmay be bent backward .as desired to engage the bolt. I have shown two,but it is evident that one would lock the bolt and nut together, but

.if .a more secure fastening is desired, two or more of the lugs orprongs may be used. In use it is probable that the bending of the lugswill cause them to break off, when other lugs may be utilized. Byproviding both. faces of the nut or bur with these lugs or prongs, whenal1 of the lugs or prongs on o-ne face are broken oil", the nut may bereversed and those on the opposite faces utilized to lock the nut andbolt together. It will therefore be seen that the life of the nut isgreatly lengthened by reason of the many lugs or prongs, andy I wouldalso call attention to the fact that by reason of the grooves' plate, soas to prevent the formation of rust and damage which occurs therefrom,thus further lengthening the life of the bolt and nut. When it isdesired to remove the nut, it is simply necessary to bend the lugs orprongs out ofthe grooves 5 in the bolt, when the nut can be unscrewed.When it is replaced, the same or other lugs may be utilized to projectinto the grooves 5 and lock the bolt and nut together.

While I have set forth m improvements in connection with a rail joint,it is evident that the use of the nut is in nowise limited but may beput to any use for which 1t 1s applicable.

Various slight changes might be made 1n the general form and arrangementof parts described without departing fr om my 1nvention, and hence I donot l1m1t myself to the precise details set forth, but conslder myselfat liberty to make such'changes and alterations as fairly fall wlthlnthe splrlt and scope of the appended claims.

Having thus described my inventlon, what I claim as new and desire tosecure by Letters Patent is: t

l. A bolt having a longitudinal groove 1n its threaded portion incombination with a nut provided on its outer face with a tongue formedintegrally therewith by undercutting a portion of the metal .of the nutfrom the periphery toward the center, and said vtongue being bent backover the inner p0rtion of the nut to engage said longitudinal groove,substantially as described.

2. A nut provided on its outer face with a tongue formed integrallytherewith by undereutting a portion of the metal of the nut from theperiphery toward the center and also severing the saine laterally fromthe adjacentportions ofthe nut, said nut having a threaded bolt hole andsaid tongue being adapted to be bent lbackwardly over f the innerportion of the nut with its end overjetting -said bolt hole,substantially as described.

3. A bolt having a longitudinal V-shaped groove in its threaded portion,in combination with a nut provided on its outer face with a tongueformed integrally therewith by undercutting a portion of the metal ofthe nut from an ,angular corner of the nut toward the center, the cornerportion of the nut forming a sharp end `for said tongue, and said tonguebeing adapted to be bent ybackwardly with the sharpened end' engagnameto this lspecification in the presence of two subscribing witnesses.

LOUIS V. BARRETT.

Witnesses:

A. C. SHU'rTmWonTH, i J. G. SGHAD.

